Import ArpDxe, Dhcp4Dxe, Ip4Dxe, Mtftp4Dxe, PxeBcDxe and PxeDhcp4Dxe.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3492 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 151 insertions, 0 deletions

diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Route.h b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Route.h
new file mode 100644
index 0000000000..ce07b1d10c
--- /dev/null
+++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Route.h
@@ -0,0 +1,151 @@
+/** @file
+
+Copyright (c) 2005 - 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+
+Module Name:
+
+  Ip4Route.h
+
+Abstract:
+
+  EFI IP4 route table and route cache table defintions.
+
+
+**/
+
+#ifndef __EFI_IP4_ROUTE_H__
+#define __EFI_IP4_ROUTE_H__
+
+#include "IP4Common.h"
+
+enum {
+  IP4_DIRECT_ROUTE      = 0x00000001,
+
+  IP4_ROUTE_CACHE_HASH  = 31,
+  IP4_ROUTE_CACHE_MAX   = 64, // Max NO. of cache entry per hash bucket
+};
+
+#define IP4_ROUTE_CACHE_HASH(Dst, Src)  (((Dst) ^ (Src)) % IP4_ROUTE_CACHE_HASH)
+
+//
+// The route entry in the route table. Dest/Netmask is the destion
+// network. The nexthop is the gateway to send the packet to in
+// order to reach the Dest/Netmask. If the Flag has IP4_DIRECT_ROUTE
+// on, the gateway is the destination of the IP packet itself. Route
+// enties of the connected network have the flag on.
+//
+typedef struct {
+  NET_LIST_ENTRY            Link;
+  INTN                      RefCnt;
+  IP4_ADDR                  Dest;
+  IP4_ADDR                  Netmask;
+  IP4_ADDR                  NextHop;
+  UINT32                    Flag;
+} IP4_ROUTE_ENTRY;
+
+//
+// The route cache entry. The route cache entry is optional.
+// But it is necessary to support the ICMP redirect message.
+// Check Ip4ProcessIcmpRedirect for information.
+//
+// The cache entry field Tag is used to tag all the route
+// cache entry spawned from a route table entry. This makes
+// it simple to delete all the route cache entries from a
+// to-be-deleted route entry.
+//
+typedef struct {
+  NET_LIST_ENTRY            Link;
+  INTN                      RefCnt;
+  IP4_ADDR                  Dest;
+  IP4_ADDR                  Src;
+  IP4_ADDR                  NextHop;
+  UINTN                     Tag;
+} IP4_ROUTE_CACHE_ENTRY;
+
+//
+// The route cache table is organized as a hash table. Each
+// IP4 route table has a embedded route cache. For now the
+// route cache and route table are binded togehter. But keep
+// the route cache a seperated structure in case we want to
+// detach them later.
+//
+typedef struct {
+  NET_LIST_ENTRY            CacheBucket[IP4_ROUTE_CACHE_HASH];
+} IP4_ROUTE_CACHE;
+
+//
+// Each IP4 instance has its own route table. Each ServiceBinding
+// instance has a default route table and default address.
+//
+// All the route table entries with the same mask are linked
+// together in one route area. For example, RouteArea[0] contains
+// the default routes. A route table also contains a route cache.
+//
+typedef struct _IP4_ROUTE_TABLE IP4_ROUTE_TABLE;
+
+typedef struct _IP4_ROUTE_TABLE {
+  INTN                      RefCnt;
+  UINT32                    TotalNum;
+  NET_LIST_ENTRY            RouteArea[IP4_MASK_NUM];
+  IP4_ROUTE_TABLE           *Next;
+  IP4_ROUTE_CACHE           Cache;
+};
+
+IP4_ROUTE_TABLE*
+Ip4CreateRouteTable (
+  VOID
+  );
+
+VOID
+Ip4FreeRouteTable (
+  IN IP4_ROUTE_TABLE        *RouteTable
+  );
+
+EFI_STATUS
+Ip4AddRoute (
+  IN IP4_ROUTE_TABLE        *RtTable,
+  IN IP4_ADDR               Dest,
+  IN IP4_ADDR               Netmask,
+  IN IP4_ADDR               Gateway
+  );
+
+EFI_STATUS
+Ip4DelRoute (
+  IN IP4_ROUTE_TABLE        *RtTable,
+  IN IP4_ADDR               Dest,
+  IN IP4_ADDR               Netmask,
+  IN IP4_ADDR               Gateway
+  );
+
+IP4_ROUTE_CACHE_ENTRY *
+Ip4FindRouteCache (
+  IN IP4_ROUTE_TABLE        *RtTable,
+  IN IP4_ADDR               Dest,
+  IN IP4_ADDR               Src
+  );
+
+VOID
+Ip4FreeRouteCacheEntry (
+  IN IP4_ROUTE_CACHE_ENTRY  *RtCacheEntry
+  );
+
+IP4_ROUTE_CACHE_ENTRY *
+Ip4Route (
+  IN IP4_ROUTE_TABLE        *RtTable,
+  IN IP4_ADDR               Dest,
+  IN IP4_ADDR               Src
+  );
+
+EFI_STATUS
+Ip4BuildEfiRouteTable (
+  IN IP4_PROTOCOL           *IpInstance
+  );
+#endif